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Q) Suddenly DAX TX does not work. Any fix?

Takeshi Yamada
Takeshi Yamada RetiredMember ✭✭
edited April 2017 in SmartSDR for Windows
It might be a **** question, but suddenly I cannot transmit RTTY from FLDIGI.  I could use it a while ago.
I can confirm the signal goes to DAX TX2, but SmartSDR DAX does not recognize the signal and Flex does not transmit any signal as you see the left one, Windows' sound screen TX2 shows green while the right one SmartSDR DAX console TX2 does not show any, no red bar.  The receive side has no problem, I see signal into DAX RX2.

What is the problem and how can we fix?

I am using Windows 8.1, SmartSDR 1.3.8,


Completed · Last Updated


  • KY6LA_Howard
    KY6LA_Howard La Jolla, CA. Paris and Sablet FranceMember ✭✭✭
    edited April 2017
    Your TX button (greyed out) is not enabled in your DAX Control Panel
  • Takeshi Yamada
    Takeshi Yamada Retired Member ✭✭
    edited November 2014
    Thank you! 
    It was a **** question....   I'm not sure why it dimmed out, though.

    de JI1BNU
  • Sergey R5AU
    Sergey R5AU Sergey Member ✭✭
    edited April 2015
    Takeshi,  looks like DAX driver not started properly, do you have DAX audio devices?
  • KY6LA_Howard
    KY6LA_Howard La Jolla, CA. Paris and Sablet FranceMember ✭✭✭
    edited January 2017
    Sometimes things unexplainable happen. Or we just accidentally click the wrong button.
  • Sergey R5AU
    Sergey R5AU Sergey Member ✭✭
    edited April 2017
    after DAX restarting / PC reboot,  do you have the same issue ?

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